JPS6025140B2 - electric razor - Google Patents

Description

[Detailed description of the invention] This invention relates to an electric shaver.

In conventional electric shavers, the inner and outer blades are always in pressure contact even when they are not in use, i.e., when they are stopped, so the load at startup is large, and as a result, a large current flows through the outside of the shaver, reducing the lifespan of batteries and storage batteries. There were drawbacks that significantly degraded the performance. Therefore, an object of the present invention is to provide an electric shaver that can reduce the load upon starting the motor.

FIG. 1 shows an embodiment of this invention.

In FIG. 1, the driving punch 1 is iron-coupled to the motor shaft 2 of the motor M so that the shaft can be rotated freely in all directions, and the tip of the driving punch 1 is aligned with the inner blade base 6, and the inner blade base The inner cutter a provided at 6 faces the lower surface of the outer cutter b. Further, a push-up plate 5 is attached to the drive punch 1, and a return spring 3 is provided on the push-up plate 5 to bias the drive village 1 and the inner cutter base 6 in a direction away from the outer cutter b in the scale direction. One end of the push-up lever 4, whose intermediate portion is supported by the main body, is connected to the push-up plate 5, and the lever end engages with the handle of the switch S. When the handle of the switch S is in the off position (the state shown in Fig. 1), the lever 4 and the return spring 3 separate the inner cutter a from the outer cutter b via the push-up plate 5 and the inner cutter base 6. However, when the handle moves from the off position to another position beyond the on position, the return spring 3
The inner cutter a contacts the outer cutter b against the force. That is, the push-up plate 6, the return 1 imitation 3, the push-up lever 4, and the handle of the switch S constitute an inner blade contact means for contacting the inner cutter a, and an inner cutter separation means for separating the inner cutter a. ing. When the switch S is off (the state shown in the figure), the inner cutter a disposed on the inner cutter base 6 is separated from the outer cutter b, but when the switch S is lowered one step and turned on, the motor M rotates. It starts and the inner cutter base 6 rotates. When the switch S is lowered one more step, the switch S pushes up the lever 4 and pushes up the push-up plate 5, and the push-up force pushes up the inner cutter base 6 and brings the inner cutter a into contact with the outer cutter b. When the switch S is returned to its original state, that is, turned off, the drive punch 1 is pushed down by the return spring 3.
The inner cutter a separates from the outer cutter b and returns to the illustrated state. Second
The figure shows another embodiment of the invention.

In this embodiment, the inner blade separating means and the inner blade contacting means include a lever support shaft 7, a push-up lever 4, a push-up plate 5, a stopper 9, a spring 8, a switch lever 10, and a switch S.
Consists of a handle. That is, in FIG. 2, the V-shaped push-up lever 4 is
The lever support shaft 7 with the attached lever is fixed to the drive village 1, and the push-up plate 5 is attached to the upper part of the push-up lever 4 so as to be able to rise and fall freely on the drive village 1, and the stopper 9 is pushed up by the stopper spring 8. to connect the stopper 9 with the switch lever 10. An inner cutter base 6 is mounted on the upper part of the push-up plate 5 so as to be movable up and down, and is arranged so that the inner cutter a is separated from the outer cutter b when the switch S is turned off. When the switch S is turned clockwise to turn it on, the motor M starts and the drive punch 1 rotates, and at the same time the lever support shaft 7 rotates and the pushing lever 4 is swung outward by centrifugal force. , the free end pushes up the push-up plate 5 and pushes up the inner cutter base 6, thereby bringing the inner cutter a into contact with the outer cutter b. At this time, the stopper 9 is projected to the lower part of the push-up plate 5 by the stopper spring 8, and even if the rotation speed of the motor M becomes small, the inner cutter base 6 is prevented from descending, and the inner cutter a is separated from the outer cutter b. I try not to. When the switch S is returned to its original state and turned off, the stopper 9 is retracted by the switch lever 1, and as a result, the inner cutter base 6 descends together with the push-up plate 5, and the inner cutter a separates from the outer cutter b. . As described above, the electric shaver of the present invention includes: an outer cutter; an inner cutter base having an inner cutter that is releasably disposed on the lower surface of the outer cutter and faces the outer cutter;
a motor having a drive village for driving the inner cutter base; a switch for controlling the motor; an inner cutter separating means for separating the inner cutter of the inner cutter base from the outer cutter when the switch is turned off; Since the inner cutter contact means brings the inner cutter of the inner cutter base into contact with the outer cutter after a predetermined time has elapsed from the turn-on operation of the switch, the inner cutter separates from the outer cutter at the time of starting, so the load torque is small for starting. This has the effect of preventing overcurrent from flowing and easily extending the lifespan of batteries and storage batteries.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG. 2 is a sectional view showing another embodiment. 1... Drive punch, M... Motor, 2... Motor shaft, 3... Return spring, 4... Push up lever, 5... Push Raising plate, 6... Inner blade base, 7.
... Lever support shaft, 9 ... Stopper, 10 ...
Switch lever, a...inner blade, b...outer blade. Traditional figure 1 figure 2

Claims (1)

[Scope of Claims] 1. An outer cutter, an inner cutter base having an inner cutter that is disposed on the lower surface of the outer cutter so as to be able to move toward and away from the outer cutter and faces the outer cutter, and that drives the inner cutter base. a motor having a drive rod, a switch for controlling the motor, and an inner cutter separating means for separating the inner cutter of the inner cutter base from the outer cutter when the switch is turned off;
an electric shaver comprising: inner blade contact means for bringing the inner cutter of the inner cutter base into contact with the outer cutter after a predetermined period of time has passed since the switch is turned on; 2 The inner cutter base and the drive rod are connected, the drive rod and the motor shaft of the motor are slidably fitted in the axial direction, and the inner cutter separating means and the inner cutter contacting means are connected to the drive rod. a push-up plate provided on the switch, a return spring that biases the inner cutter in the direction of separating the outer cutter, and a push-up lever interposed between the handle of the switch and the front push-up plate; Claim 1: The inner cutter is separated from the outer cutter by the push-up lever at a position, and the inner cutter is brought into contact with the outer cutter at another position beyond the on position from the off position of the handle. Electric shaver as described in section. 3. The inner cutter separating means and the inner cutter contacting means are rotatably provided on a push-up plate provided on the inner cutter base, a lever support shaft provided on the drive rod, and the lever support shaft. a push-up lever, and a stopper that elastically engages with the push-up plate to restrict the inner cutter to a position in which it contacts the outer cutter and a position in which it separates from the outer cutter, and rotates together with the drive rod when the switch is turned on. The pushing up and rotation in the axial direction due to the centrifugal force push up the pushing up plate and get over the stopper, bringing the inner cutter into contact with the outer cutter, and disengaging and disengaging the stopper at the off position of the handle. The electric shaver according to claim 1, wherein the inner cutter base is moved apart by its own weight.